Hidden beneath the ocean floor, bobbit worms are ambush predators that strike with incredible speed. Their sudden attacks and powerful jaws make them one of the most unsettling creatures in the sea.

The ocean is home to some of the most terrifying creatures in the world. Whether they’re scary in sheer size, appearance, or behavior, there’s a long list of creatures that you probably don’t want to ...

Why it is awesome: With its scientific name referencing Aphrodite, the Greek goddess of love and beauty, the sand striker is a stunning, glittering marine worm — and a terrifying ambush predator. It ...

Watch this underwater predator ambush and devour its prey in a split second.

This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...

'A combination of amazement and horror': Hitchhiker fish hide in manta ray buttholes 'Kraken' octopus that lived at the time of the dinosaurs was a 62-foot-long apex predator of the ocean Deadly, ...